[PATCH 0/2] tracing/function_graph fixes for 2.6.31

[Frederic Weisbecker <fweisbec@gmail.com>]

Ingo, Thomas,

Those are two fixes for the function graph tracer for .31

The first one fixes a possible race condition between a function graph trace
reader and ring buffer writers, leading to a mixup inside an event entry, or
worst.

The second one fixes some issues in the output of the function graph tracer
while using splice on the trace_pipe file or ftrace_dump().

Both fixes should also be backported on .30 for the -stable branch.

Thanks,
Frederic.

The following changes since commit 4733fd328f14280900435d9dbae1487d110a4d56:
  Benjamin Herrenschmidt (1):
        mm: Remove duplicate definitions in MIPS and SH

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git tracing/fixes

Lai Jiangshan (2):
      tracing: Fix invalid function_graph entry
      tracing: Fix missing function_graph events when we splice_read from trace_pipe

 kernel/trace/trace.c                 |   10 +++++++---
 kernel/trace/trace_functions_graph.c |   11 +++++++++--
 2 files changed, 16 insertions(+), 5 deletions(-)